Abstract
Aim: Previous data from our laboratory have demonstrated that localized aggressive periodontitis (LAP) patients produce elevated levels of pro-inflammatory cytokines in response to TLR4 and TLR2 ligation compared to unrelated and periodontally healthy controls (HC). The aim of the present work is to evaluate the contribution of TLR-related gene expression and miRNA regulation in LAP disease. Material and methods: Peripheral blood mononuclear cells (PBMCs) from LAP and health control (HC) patients were isolated. Gene and miRNA expression involved in TLR signalling pathway and immunopathology were evaluated in unstimulated PBMCs by real-time PCR (RT-PCR). Results: TICAM-1 (TRIF), FOS, IRAK1, TLR2 and CCL2 genes and the miRNAs miR-9-5p, miR-155-5p and 203a-3p, miR-147a, miR-182-5p and miR-183-5p were significantly up-regulated in LAP compared to HC. Conclusions: Most of the genes and miRNAs overexpressed here are directly or indirectly related to immune response and inflammation. This profile supports our previous findings that suggests LAP patients have a “hyper-responsive” phenotype upon activation of TLR pathway by periodontal pathogens.
Original language | English |
---|---|
Pages (from-to) | 1317-1325 |
Number of pages | 9 |
Journal | Journal of Clinical Periodontology |
Volume | 47 |
Issue number | 11 |
DOIs | |
State | Published - Nov 1 2020 |
Bibliographical note
Funding Information:This research was supported by National Institute of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR R01DE019456). The authors would like to thank the doctors and staff at the Leon (Drs. John Bidwell, Edward Zapert and Dan Cober) and Duval County Health Department (Drs Phillis Varnado and Renata Sturtz) dental centres for their assistance in coordinating our visits to their clinics, patient referrals and dental care. This study is registered in Clinicaltrials.gov (#NCT01330719).
Funding Information:
This research was supported by National Institute of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR R01DE019456).
Publisher Copyright:
© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd
ASJC Scopus subject areas
- Periodontics